Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, E (A, M) | Fumarate reductase flavoprotein subunit | polymer | 602 | 66057.6 | 2 | UniProt (P00363) Pfam (PF00890) Pfam (PF02910) | Escherichia coli | |
| 2 | B, F (B, N) | Fumarate reductase iron-sulfur protein | polymer | 243 | 27021.9 | 2 | UniProt (P0AC47) Pfam (PF13085) Pfam (PF13237) | Escherichia coli | |
| 3 | C, G (C, O) | Fumarate reductase 15 kDa hydrophobic protein | polymer | 130 | 14898.8 | 2 | UniProt (P0A8Q0) Pfam (PF02300) | Escherichia coli | |
| 4 | D, H (D, P) | Fumarate reductase 13 kDa hydrophobic protein | polymer | 119 | 13118.9 | 2 | UniProt (P0A8Q3) Pfam (PF02313) | Escherichia coli | |
| 5 | I, R (A, M) | OXALOACETATE ION | non-polymer | 131.1 | 2 | Chemie (OAA) | |||
| 6 | J, S (A, M) | FLAVIN-ADENINE DINUCLEOTIDE | non-polymer | 785.5 | 2 | Chemie (FAD) | |||
| 7 | K, T (B, N) | FE2/S2 (INORGANIC) CLUSTER | non-polymer | 175.8 | 2 | Chemie (FES) | |||
| 8 | L, U (B, N) | FE3-S4 CLUSTER | non-polymer | 295.8 | 2 | Chemie (F3S) | |||
| 9 | M, V (B, N) | IRON/SULFUR CLUSTER | non-polymer | 351.6 | 2 | Chemie (SF4) | |||
| 10 | N, O, W, Z (B, D, N, P) | MENAQUINONE-7 | non-polymer | 649.0 | 4 | Chemie (MQ7) | |||
| 11 | P, Q, X, Y (D, O) | O-DODECANYL OCTAETHYLENE GLYCOL | non-polymer | 538.8 | 4 | Chemie (CE1) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 8 |
| Total formula weight | 242194.2 | |
| Non-Polymers* | Number of molecules | 18 |
| Total formula weight | 8230.8 | |
| All* | Total formula weight | 250424.9 |
